'Big Bang Theory' stars sign new deals

The studio that produces the hit CBS show said it has reached contract deals with the sitcom's cast.

The comedy will begin production today for the 2014-15 season, now that contract negotiations have concluded, Warner Bros. Television said in a statement sent to FOX411 Tuesday.

Work on the eighth season reportedly had been delayed as the cast of TV's top-rated sitcom held out for raises. Agreements have been reached with stars Jim Parsons, Johnny Galecki and Kaley Cuoco for lucrative three-year contracts that trade reports estimate at about $1 million per episode for each actor.

The stars reportedly earned $325,000 per episode before their raises.

Warner Bros. declined to comment on specifics.

Deals are in place with the entire cast, which includes Simon Helberg and Kunal Nayyar, the studio said.

The series about geeky scientist pals and the women who love them returns Sept. 22.